Thread: installing compressor in D4 engine bay

So reviving an old thread. As I am about to do this. Can I get an update please on how your visions panned out in reality?

Clearly there a number of ways to skin a cat. You all went a different way. I am interested to know 2 years down the track how did your vision pan out?

1. For those with the compressor in the auxiliary driver side battery box, did you have any overheating or other issues?

2. For those with compressor in front of the OEM battery box in the open did you hVe any fatigue, mud or water issues?

Do you wish you went another way in practice?
Thanks for your help!

Nice timing, I’ve been meaning to get onto this for a while now.
My comp sits in a bag behind the rear seats and can be a pain to pull it out sometimes. Looking to see which way to go now. I’m about to pull out my 3rd row seats, so I may end up placing it under my there 🧐

Just came back from ARB and had a good discussion with the main installer there. Just sharing here if it helps anyone with their decision.

I shared the comments from here with him and shown him few pictures of where and how you folks went about it.

His feedback was that these are designed to be mounted in the engine bay. In fact 90% of them are installed in the engine bay, exposed to the elements and are designed to cope with dust, water and heat from the engine.

These have been going into engine bays for 10 years and they never had anyone come back to their shop and say that they had trouble with them or failing due to an engine bay mount.

So I think I will go with the auxiliary battery going into the driver side auxiliary plastic box. I think it’s a bit neater that way and keeping it consistent with the OEM battery storage. And I will mount the compressor in from of the main battery like some have done.

Even on the box it’s pictured mounted in the engine bay

Umm , my twin ARB failed recently and it’s probably 12-18 months old.....I little annoying as I require it for my suspension, had to revert to a bike pump for a few days.

It was mounted in a side box on defender, I dropped it into ARB and they fixed it for free they said the contractors had corrosion.

The side box is defiantly better conditions than an engine bay, not heat, no water, no dust.....

Although I’m back up and running I’m a little wary

Originally Posted by D4Landmark

So I think I will go with the auxiliary battery going into the driver side auxiliary plastic box. I think it’s a bit neater that way and keeping it consistent with the OEM battery storage. And I will mount the compressor in from of the main battery like some have done.

Hi there,

just one thing I'd suggest before you mount the compressor there - make sure that you can actually get the battery into that position in the battery box - there are cases where the nutsert required to secure the battery hold down bracket is obscured. See this post: On Board Air Compressor

HTH
David

Originally Posted by D4Landmark

So reviving an old thread. As I am about to do this. Can I get an update please on how your visions panned out in reality?

Clearly there a number of ways to skin a cat. You all went a different way. I am interested to know 2 years down the track how did your vision pan out?

1. For those with the compressor in the auxiliary driver side battery box, did you have any overheating or other issues?

Do you wish you went another way in practice?
Thanks for your help!

Hi,

mine is in the driver's side battery box and has worked well. I did have an overheating issue - not the compressor itself but the hose. See this post: ARB CMK Compressor/ Traxide setup I changed it all over to Teflon - no problem now.

I've also now fitted a modified OEM air tank under the driver's side and a rear outlet so I now have one under the bonnet and one on the rear driver's side cubby near the jack. This is working well for me except I want to simplify switching it on and off.

Currently for each of those outlets I have a switch - one under the bonnet next to the auxiliary battery and one in the cubby with the outlet.

I'm currently considering putting a single switch for it in the cabin. Given that I only run the compressor with the engine running it makes sense to me to have a single switch in the cabin, probably in the headlight switch binnacle. Overall a pretty minor change though.

David